Yelp- Shares of the consumer review website rose after it reported second-quarter earnings of 4 cents per share—its first quarterly profit as a public company—on revenue of $89 million, topping expectations as the number of unique monthly visitors rose significantly.

Weight Watchers - The stock soared after the maker of dieting products reported better-than-expected quarterly earnings and revenue. The company also raised its full-year fiscal 2014 earnings guidance.